To study and not think is a waste. To think and not study is dangerous. Learning without thought is labor lost; thought without learning is perilous.

Opinion considers the opposition of what is true and false quite rigid, and, confronted with a philosophical system, it expects agreement or contradiction. And in an explanation of such a system, opinion still expects to find one or the other.

If any one will piously and soberly consider the sermon which our Lord Jesus spoke on the mount, as we read it in the Gospel according to Matthew, I think that he will find in it, so far as regards the highest morals, a perfect standard of the Christian life: and this we do not rashly venture to promise, but gather it from the very words of the Lord Himself. For the sermon itself is brought to a close in such a way, that it is clear there are in it all the precepts which go to mould the life. He has sufficiently indicated, as I think, that these sayings which He uttered on the mount so perfectly guide the life of those who may be willing to live according to them, that they may justly be compared to one building upon a rock.

The commodity is first of all, an external object, a thing which through its qualities satisfies human needs of whatever kind. The nature of these needs, whether they arise, for example, from the stomach, or the imagination, makes no difference. Nor does it matter here how the thing satisfies man's need, whether directly as a means of subsistence, i.e. an object of consumption, or indirectly as a means of production.

In every part of the universe we observe means adjusted with the nicest artifice to the ends which they are intended to produce; and in the mechanism of a plant, or animal body, admire how every thing is contrived for advancing the two great purposes of nature, the support of the individual, and the propagation of the species.

The best friend is he that, when he wishes a person's good, wishes it for that person's own sake.

The only thing that will redeem mankind is co-operation, and the first step towards co-operation lies in the hearts of individuals.

I did not know the way in which, among the ordinary English, the absence of interest in things of an unselfish kind, except occasionally in a special thing here and there, and the habit of not speaking to others, nor much even to themselves, about the things in which they do feel interest, causes both their feelings and their intellectual faculties to remain undeveloped, or to develope themselves only in some single and very limited direction; reducing them, considered as spiritual beings, to a kind of negative existence.

He [Jesus] not only forbids actual uncleanness, but all irregular desires, upon pain of hell-fire; causeless divorces; swearing in conversation, as well as forswearing in judgment; revenge; retaliation; ostentation of charity, of devotion, and of fasting; repetitions in prayer, covetousness, worldly care, censoriousness: and on the other side commands loving our enemies, doing good to those that hate us, blessing those that curse us, praying for those that despitefully use us; patience and meekness under injuries, forgiveness, liberality, compassion: and closes all; his particular injunctions, with this general golden rule, Matt. VII. 12, "All things whatsoever ye would that men should do to you, do you even so to them, for this is the law and the prophets." And to show how much He is in earnest, and expects obedience to these laws, He tells them, Luke VI. 35, That if they obey, " great shall be their reward".

All the opinions of the world agree in this, that pleasure is our end.

Love with delight discourses in my mind Upon my lady's admirable gifts...Beyond the range of human intellect.

I find that the whiter my hair becomes the more ready people are to believe what I say.

The two guides call out to a man early and late. And yet, no, for when remorse calls to a man it is always late. The call to find the way again by seeking out God in the confession of sins is always at the eleventh hour. Whether you are young or old, whether you have sinned much or little, whether you have offended much or neglected much, the guilt makes this call come at the eleventh hour. The inner agitation of the heart understands what remorse insists upon, that the eleventh hour has come. For in the sense of time, the old man's age is the eleventh hour; and the instant of death, the final moment in the eleventh hour. The indolent youth speaks of a long life that lies before him. The indolent old man hopes that his death is still a long way off. But repentance and remorse belong to the eternal in a man.

[U]niversal is known according to reason, but that which is particular, according to sense...

"You err, not knowing the Scriptures nor the power of God" This canon is the mother of all canons against heresy; the causes of error are two; the ignorance of the will of God, and the ignorance or not sufficient consideration of his power.

What I will be remembered for are the Foundation Trilogy and the Three Laws of Robotics. What I want to be remembered for is no one book, or no dozen books. Any single thing I have written can be paralleled or even surpassed by something someone else has done. However, my total corpus for quantity, quality and variety can be duplicated by no one else. That is what I want to be remembered for.

Brother will betray brother to death, and a father his child. Children will even rise up against their parents and have them put to death. 10:21 (HCSB) Said to his disciples.

If someone were to expound that godliness is to belong to childhood in the temporal sense and thus dwindle and die with the years as childhood does, is to be a happy frame of mind that cannot be preserved but only recollected; if someone were to expound that repentance as a weakness of old age accompanies the decline of one's powers, when the senses are dulled, when sleep no longer strengthens but increases lethargy-this would be ungodliness and foolishness.

For a large class of cases - though not for all - in which we employ the word meaning it can be explained thus: the meaning of a word is its use in the language.

Oh providence! Oh nature! Treasure of the poor, resource of the unfortunate. The person who feels, knows your holy laws and trusts them, the person whose heart is at peace and whose body does not suffer, thanks to you is not entirely prey to adversity.

It goes without saying that the normal durability of fixed capital is calculated on the supposition that all the conditions under which it can perform its functions normally during that time are fulfilled, just as we assume, in placing a mans life at 30 years on the average,that he will wash himself.

When Philip had news brought him of divers and eminent successes in one day, "O Fortune!" said he, "for all these so great kindnesses do me some small mischief."

While both are dear, Piety requires us to honor truth above our friends.

The art of dining well is no slight art, the pleasure not a slight pleasure.

That a joint stock company should be able to carry on successfully any branch of foreign trade, when private adventurers can come into any sort of open and fair competition with them, seems contrary to all experience.

It is so hard to forget what it is worse than useless to remember! If I am to be a thoroughfare, I prefer that it be of the mountain-brooks, the Parnassian streams, and not the town-sewers. There is inspiration, that gossip which comes to the ear of the attentive mind from the courts of heaven. There is the profane and stale revelation of the bar-room and the police court. The same ear is fitted to receive both communications. Only the character of the hearer determines to which it shall be open, and to which closed. I believe that the mind can be permanently profaned by the habit of attending to trivial things, so that all our thoughts shall be tinged with triviality.

If there is something more excellent than the truth, then that is God; if not, then truth itself is God.

Money, then, appears as this overturning power both against the individual and against the bonds of society, etc., which claim to be essences in themselves. It transforms fidelity into infidelity, love into hate, hate into love, virtue into vice, vice into virtue, servant into master, master into servant, idiocy into intelligence and intelligence into idiocy.

These philosophers of the world place contrarieties in the same subject; for the one attributed greatness to nature and the other weakness to this same nature, which could not subsist; whilst faith teaches us to place them in different subjects: all that is infirm belonging to nature, all that is powerful belonging to grace. Such is the marvelous and novel union which God alone could teach, and which he alone could make, and which is only a type and an effect of the ineffable union of two natures in the single person of a Man-God.

The slave is doomed to worship time and fate and death, because they are greater than anything he finds in himself, and because all his thoughts are of things which they devour.

They that be whole need not a physician, but they that are sick. But go ye and learn what that meaneth, I will have mercy, and not sacrifice: for I am not come to call the righteous, but sinners to repentance. 9:12-13 (KJV)

Let me give two cautions. 1) The one is, that you keep them to the practice of what you would have grow into a habit with them, by kind words, and gentle admonitions, rather as minding them of what they forget, than by harsh rebukes and chiding, as if they were wilfully guilty. 2) Another thing you are to take care of, is, not to endeavour to settle too many habits at once, lest by variety you confound them, and so perfect none. When constant custom has made any one thing easy and natural to 'em, and they practice it without reflection, you may then go on to another.

Most people would sooner die than think; in fact, they do so.

I construct my memories with my present. I am lost, abandoned in the present. I try in vain to rejoin the past: I cannot escape.

No matter how outrageous a lie may be, it will be accepted if stated loudly enough and often enough.

A person can perhaps succeed in hiding his sins from the world, he can perhaps be foolishly happy that he succeeds, or yet, a little more honest, admit that it is a deplorable weakness and cowardliness that he does not have the courage to become open-but a person cannot hide his sins from himself.

If evolution is a struggle for survival, why hasn't it ruthlessly eliminated altruists, who seem to increase another's prospects of survival at the cost of their own?

To call out for the hand of the enemy is a rather extreme measure, yet a better one, I think, than to remain in continual fever over an accident that has no remedy. But since all the precautions that a man can take are full of uneasiness and uncertainty, it is better to prepare with fine assurance for the worst that can happen, and derive some consolation from the fact that we are not sure that it will happen.

Who is going to educate the human race in the principles and practice of conservation?

The world neither ever saw, nor ever will see, a perfectly fair lottery.

When a country is well governed, poverty and a mean condition are things to be ashamed of. When a country is ill governed, riches and honor are things to be ashamed of.

With respect to a true culture and manhood, we are essentially provincial still, not metropolitan, - mere Jonathans. We are provincial, because we do not find at home our standards, - because we do not worship truth, but the reflection of truth, - because we are warped and narrowed by an exclusive devotion to trade and commerce and manufactures and agriculture and the like, which are but means, and not the end.

Opposition brings concord. Out of discord comes the fairest harmony.

You have stolen my face from me: you know it and I no longer do.

Religion is not 'doctrinal knowledge,' but wisdom born of personal experience.

Habit... makes the endurance of evil easy (which, under the name of patience, is falsely honored as a virtue), because sensations of the same type, when continued without alteration for a long time, draw our attention away from the senses so that we are scarcely conscious of them at all. On the other hand, habit also makes the consciousness and the remembrance of good that has been received more difficult, which then gradually leads to ingratitude (a real vice). [...] Acquired habit deprives good actions of their moral value because it undermines mental freedom and, moreover, it leads to thoughtless repetitions of the same acts (monotony), and thus becomes ridiculous.

Man's urge for change and his need for stability have always balanced and checked each other, and our current vocabulary, which distinguishes between two factions, the progressives and the conservatives, indicates a state of affairs in which this balance has been thrown out of order. No civilization - the man-made artifact to house successive generations - would ever have been possible without a framework of stability, to provide the wherein for the flux of change. Foremost among the stabilizing factors, more enduring than customs, manners and traditions, are the legal systems that regulate our life in the world and our daily affairs with each other.

Who is this that cries from the ends of the earth? Who is this one man who reaches to the extremities of the universe? He is one, but that one is unity. He is one, not one in a single place, but the cry of this one man comes from the remotest ends of the earth. But how can this one man cry out from the ends of the earth, unless he be one in all?

Boasting, like gilded armour, is very different inside from outside.

I hate the world and almost all the people in it. I hate the Labour Congress and the journalists who send men to be slaughtered, and the fathers who feel a smug pride when their sons are killed, and even the pacifists who keep saying human nature is essentially good, in spite of all the daily proofs to the contrary. I hate the planet and the human race - I am ashamed to belong to such a species.